.

wcfs/client/wcfs_misc.cpp

@@ -17,8 +17,6 @@
 // See COPYING file for full licensing terms.
 // See https://www.nexedi.com/licensing for rationale and options.
 
-// XXX #define  _GNU_SOURCE ?
-
 #include "wcfs_misc.h"
 
 #include <golang/libgolang.h>
@@ -224,7 +222,7 @@ Contextf::Contextf(const char *format, ...) {
 
     va_list argp;
     va_start(argp, format);
-    c.errctx = fmt::vsprintf(format, argp);
+    c.errctx = fmt::sprintfv(format, argp);
     va_end(argp);
 }
 #endif